Source Release

Installation Issues

If you are running Netscape 4 or other browser that supports NPAPI
plugins but not XPI, just save the correct XPI above to disk, rename it to
.zip (it's just a zip file), and move all but the install.js into your
browser's plugins directory.

Getting Error code -202 on XPI install? This indicates that you do
not have permissions to the plugin directory that the browser wants to
write to. The plugin first tries to install into the browser's global
plugins folder. If that is not possible, it will try to determine the
user-specific plugins folder and install there.

A full list of XPInstall
Return Codes is available to better understand what may be going wrong.
For Mozilla/Firefox, there is also an install.log file in the
browser's installation directory that should provide verbose information
about installation.

Internet Explorer Installation

The Windows XPI binary includes a pluginhostctrl.dll which hosts
NPAPI plugins inside an ActiveX control for IE. When installing the XPI,
you will be prompted if you want to register this ActiveX control. If
you didn't do this, or don't use an XPI-enable browser, crack open the
XPI as noted above, move the files to IE's Plugins directory and run:

regsvr32 \path\to\pluginhostctrl.dll

You can unregister the ActiveX control by running regsvr32
with the -u option.